AK5381

ASAHI KASEI [AK5381] AK5381 24Bit 96kHz ∆Σ ADC GENERAL DESCRIPTION The AK5381 is a stereo A/D Converter with wide sampling rate of 4kHz ∼ 96kHz and is suitable for High-end audio system. The AK5381 achieves high accuracy and low cost by using Enhanced dual bit ∆Σ techniques. The AK5381 requires no external components because the analog inputs are single-ended. The audio interface has two formats (MSB justified, I2S) and can correspond to many systems like music instrument and AV receiver. FEATURES † Stereo ∆Σ ADC † On-Chip Digital Anti-Alias Filtering † Single-ended Input † Digital HPF for DC-Offset cancel † S/(N+D): 96dB@5V for 48kHz † DR: 106dB@5V for 48kHz † S/N: 106dB@5V for 48kHz † Sampling Rate Ranging from 4kHz to 96kHz † Master Clock: 256fs/384fs/512fs/768fs (∼ 48kHz) 256fs/384fs (∼ 96kHz) † Audio Interface: Master or Slave Mode selectable † Input level: TTL/CMOS selectable AK5381 does not support TTL level mode at fs=48kHz to 96kHz. † Output format: 24bit MSB justified / I2S selectable † Power Supply: 4.5 ∼ 5.5V (VA) 2.7 ∼ 5.5V (VD at 48kHz) 3.0 ∼ 5.5V (VD at 96kHz) † Ta = −40 ∼ 85°C (VT), −20 ∼ 85°C (ET) † Small 16pin TSSOP Package † AK5380 Pin-compatible VA AGND VD DGND MCLK AINL AINR VCOM ∆Σ Modulator ∆Σ Modulator Voltage Reference Decimation Filter Decimation Filter Clock Divider Serial I/O Interface LRCK SCLK SDTO CKS2 CKS1 CKS0 PDN DIF MS0200-E-02 -1- 2006/01 ASAHI KASEI „ Ordering Guide AK5381ET AK5381VT AKD5381 „ Pin Layo...